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Age-related loss of olfactory sensitivity: Association to dopamine transporter binding in putamen
Stockholms universitet, Samhällsvetenskapliga fakulteten, Psykologiska institutionen, Perception och psykofysik. Stockholm Brain Institute, Stockholm, Sweden.
Karolinska Institutet.
University of Dresden Medical School.
University of Dresden Medical School.
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2009 (Engelska)Ingår i: Neuroscience, ISSN 0306-4522, E-ISSN 1873-7544, Vol. 161, nr 2, s. 422-426Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The relationship between age-related reductions in the binding potential for the striatal dopamine transporter (DAT) and age-related deficits in olfactory sensitivity was examined in 12 subjects ranging from 36 to 82 years of age. Positron emission tomography (PET) and the radioligand [11C]β-CIT-FE were used to determine DAT binding in two striatal regions, the caudate and the putamen. The results showed age-related losses of DAT binding from early to late adulthood of similar size for caudate and putamen, and there was a pronounced age deterioration in olfactory sensitivity. Importantly, the age-related olfactory deficit was associated with reductions in DAT binding in putamen, but not caudate. Also, DAT binding in putamen added systematic variance in odor threshold after controlling for age. The findings indicate that DAT binding in putamen is related to age-related olfactory deficits, as well as to odor sensitivity independently of age.

Ort, förlag, år, upplaga, sidor
Elsevier Ltd. , 2009. Vol. 161, nr 2, s. 422-426
Nyckelord [en]
olfaction, dopamine, striatum, putamen, aging
Nationell ämneskategori
Psykologi
Forskningsämne
psykologi
Identifikatorer
URN: urn:nbn:se:su:diva-31807DOI: 10.1016/j.neuroscience.2009.03.074ISI: 000266794100010OAI: oai:DiVA.org:su-31807DiVA, id: diva2:278634
Anmärkning

The present research was supported by grants from the Swedish Research Council to Maria Larsson, and by grants from the Swedish Research Council and Swedish Brain Power to Lars Bäckman.

Tillgänglig från: 2009-11-27 Skapad: 2009-11-27 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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